1973 Evinrude Norseman 40 HP Service Manual, Page 41Get this manual
eRemove throttle control lever by removing two screws and clamps, and lifting lever from lower motor cove rfRemove shifter lock spring and shifter lock gRemove two nuts and nine screws attaching power head to exhaust housing assemblySee Figures 5-4 and 5-5Remove power head and place on bench for disassembly
Figure 5-4Power Head Attaching Nuts
Figure 5-5Power Head Attaching Screws
CUTTING UPPER MAIN EAR ING SEAL LIP